VIDEORAY DEFENDER

NAV PACKAGE

The Mission Specialist Navigation Package allows for a higher level of autonomous control. The package integrates a Doppler Velocity log (DVL) which locks onto and tracks the ROV’s position along the sea bottom.


The DVL estimates distance traveled and calculates the current position with simple “dead reckoning” navigation.

A GPS antennae is used to correct the vehicle’s position when it is on the surface.


These sensors are seamlessly integrated on the Defender through Greensea’s Balefire software with station keeping, requisition, mission planning, dynamic positioning, and data string export features.


A USBL system can added to the system and used on mission profiles where the sea bottom exceeds the operational range of the DVL.


At this time this package can only be added to a VideoRay Defender ROV


DVL

Depth rating - 300m

Frequency of Operation - 1MHz

Beam Width - 2.9 degrees

Configuration - 4-beam Janus array convex transducer, 25 degree beam angle

Single ping std @ 3 m/s - 0.5cm/s

Minimum altitude - 0.2m

Maximum altitude - 75m


GREENSEA UPGRADES

Station Keeping

Reacquisition

Mission Planning

Dynamic Positioning


MAX-M8W GPS MAST

Depth rating - 300m

Horizontal Position accuracy - 2.5m

Time-to-first-fix - 29s

Sensitivity - -166 dBm

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